Current Series Release Notes¶

22.0.0.0rc1-30¶

k8s_fedora_coreos_v1 driver (also known as Heat-based driver) has been dropped following earlier deprecation.

Support for legacy admin service-user credentials in the [keystone_authtoken] configuration section has been removed. The deprecated admin_user, admin_password, and admin_tenant_name options were dropped from keystonemiddleware in the 2026.2 release. Operators must ensure that service-user credentials are configured in the [keystone_auth] section using the keystoneauth1 password auth plugin options (auth_url, username, password, project_name, etc.). Magnum will no longer fall back to [keystone_authtoken] for admin authentication and will raise an error if [keystone_auth] is not properly configured.

The deprecated auth_uri option in [keystone_authtoken] is no longer recognised by Magnum. This option was removed from keystonemiddleware in the 2026.2 release. Operators should use www_authenticate_uri in [keystone_authtoken] instead. Note that auth_url in [keystone_auth] is now the primary source for the Keystone endpoint used by Magnum’s service-user session.

TLS session options (certfile, keyfile, cafile, insecure, timeout) are no longer accepted in the [keystone_authtoken] section as deprecated aliases for the [keystone_auth] equivalents. These options must be set directly in [keystone_auth] if required.

Keystone trust manager functionality has been dropped (Heat-based driver was the only user - and it has been removed).

The boot_volume_size label value is passed as a string from the API. The validator now converts it to an integer before comparison.